COLONY FOUNDING OF ACANTHOMYOPS FULIGINOSUS. 175 



eventually to die off and leave a pure and thriving 

 colony." That this method of colony founding is actually adopted 

 by fiiliginosiis queens is clearly indicated by the following observa- 

 tions which have been slowly accumulating during the past few 

 years. He then proceeds to review the writings of Crawley, Donis- 

 thorpe, Emery, Forel, de Lannoy, and Wasmann ; and gives some 

 further illuminating and interesting remarks on the genus Acan- 

 thoun'ops (Lasiits). 



Donisthorpe ('net), in a paper read before the Entomological 

 Society of London on December 7, 1910, mentions briefly all that 

 was known to date on the colony founding of fuliginosus, referring 

 to the writings and views of all the above-mentioned myrmecolo- 

 gists. He further says that a worker of nuibratus had been sent 

 to him to name on September 20, 1900, by a Mr. Tuck, who had 

 taken it in a fitliginosus nest situated in a horse-chestnut stump at 

 Bury St. Edmunds. He then stated : " My friend Mr. Crawley 

 and I intend to carry out experiments with fnUginosus queens and 

 observation nests of nuibratus next year." 



Donisthorpe and Crawley ('lib), in a paper read before the 

 Entomological Society of London on November 15, gave the results 

 of the above-promised experiments, which they published in detail. 

 These experiments were entirely successful, and proved without 

 doubt that a female fnUginosus will be accepted and her brood be 

 brought up by the umbratus workers. They reviewed all the pre- 

 vious discoveries and gave a complete list of the literature on the 

 subject. 



The same two authors ('13), in a voluminous paper on the 

 founding of colonies by queen ants read at the Second International 

 Congress of Entomology held at Oxford in 1912, gave a very 

 complete account of the colony founding of this ant, including all 

 experiments and discoveries, in detail, made up to date. 



Donisthorpe ('13), in a paper on some remarkable associations 

 between ants of different species read before the Lancashire and 

 Cheshire Entomological Society, briefly referred to the colony 

 founding of fnliginosus queens in nests of nmbratus and nii.rtus. 



Donisthorpe ('150.), in his book on " British Ants," gives a full 

 account of the colony founding of this species. It seems as well 

 to reproduce the whole of this account here, as it gives the main 



